British archaeologist whose work was important in establishing human evolutionary development in Africa (1903–1972). Two letters: one TLS signed “L. S. B. Leakey,” one onionskin page, 8.5 x 11, February 11, 1967, regarding signing a copy of his book White African; and one TLS signed “L. S. B. Leakey,” two pages, 8.5 x 11, L. S. B. Leakey Foundation letterhead, December 25, 1968. In part: “I was able to describe an important new fossil lower jaw of Kenyapithecus africanus in the scientific paper Nature. I also was able to publish an exciting discovery from Fort Ternan. This consisted of a lump of lava which was used by Kenyapithecus wickeri to break open bones in Upper Miocene times…Dian Fossey will continue her gorilla studies; she is already in very close contact with one group and getting magnificent results. We hope to have a new girl, Kathy Simpson, doing work on Braza monkeys next year. Jane Van Lawick Goodall, of course, is still working on her chimpanzee projects.” In overall fine condition. RR Auction COA.